Page 260 - 《振动工程学报》2025年第8期

第 38 卷第 8 期 振 动 工 程 学 报 Vol. 38 No. 8
2025 年 8 月 Journal of Vibration Engineering Aug. 2025

脉冲型地震动下埋地管道易损性及巨震风险分析

韩俊艳， 王小强， 申家旭， 康安琦， 缪惠全， 杜修力

（北京工业大学城市与工程安全减灾教育部重点实验室，北京 100124）

摘要: 第五代《中国地震动参数区划图》（GB 18306—2015）第一次引入了极罕遇地震（巨震）作用，然而现行抗震设计规范仍然
采用三水准设防原则，考虑巨震的抗震设计已成为结构抗震设计亟需解决的问题之一。本文基于连续小波变换的识别方法，
选取 2023 年 2 月 6 日土耳其巨震中实测的 12 条脉冲型地震动以及 12 条无脉冲地震动，在此基础上对连续管道以及球墨铸铁
管道开展增量动力分析（IDA），评估其易损性，最后将易损性分析结果与经验统计法得到的失效概率进行对比。结果表明：对
于不同形式的埋地管道，脉冲型地震动的作用均会显著增加结构发生严重破坏的概率；相较于连续管道，球墨铸铁管道在地震
动作用下更易发生破坏，且对脉冲型地震动更加敏感；基于实际震害数据的经验统计结果略小于无脉冲地震动作用下管道的
破坏概率，但会显著低估脉冲地震作用下埋地管道的破坏。本文给出了不同类型埋地管道在脉冲型地震动作用下的失效概
率，研究结果可为埋地管道在巨震以及脉冲型地震动下的风险评估以及抗震设计提供有力的理论依据。
关键词: 结构抗震； 埋地管道； 易损性分析； 增量动力分析； 脉冲型地震动； 巨震
中图分类号: TU457 文献标志码: A DOI：10.16385/j.cnki.issn.1004-4523.202307004

Fragility and very rare earthquake risk of buried pipeline
based on pulse-like ground motions

HAN Junyan， WANG Xiaoqiang， SHEN Jiaxu， KANG Anqi， MIAO Huiquan， DU Xiuli
（Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education，
Beijing University of Technology， Beijing 100124， China）

Abstract: The fifth generation “seismic ground motion parameters zonation map of China” （GB 18306―2015）， which was pro‑
mulgated and implemented in China， introduced the vary rare earthquake effect for the first time. However， the current seismic de‑
sign specifications still adopt the three-level defense principle. The seismic design for vary rare earthquake has become one of the ur‑
gent issues that need to be addressed in structural seismic design. Based on the identification method of continuous wavelet trans‑
form， this paper selects 12 pulse-like ground motions and 12 non-pulse seismic motions recorded in the Turkey mega earthquake on
February 6， 2023. The incremental dynamic analysis （IDA） is conducted on continuous pipelines and ductile iron pipelines to eval‑
uate their seismic fragility. The fragility analysis results are compared with the failure probability obtained by empirical statistical
method. The results show that the effect of pulse-like ground motions significantly increases the probability of serious structural
damage for buried pipelines with different forms. Compared with continuous pipelines， ductile iron pipelines are more prone to dam‑
age underground motions， and are more sensitive to the pulse-like ground motion. The empirical statistical results based on actual
seismic damage data are slightly lower than the failure probability of pipelines under non-pulse earthquake motion， but significantly
underestimate the damage of buried pipelines under pulse earthquake motion. In this paper， the failure probability of different types
of buried pipelines under pulse-like seismic motions is given， and the research results can provide a strong theoretical basis for the
risk assessment and seismic design of buried pipelines under very rare and pulse-like ground motions.

Keywords: structural seismic resistance； buried pipeline； fragility analysis； incremental dynamic analysis； pulse-like ground
motion； very rare earthquake

收稿日期: 2023-07-02； 修订日期: 2023-08-31
基金项目: 北京市自然科学基金资助项目（8212005）；国家重点研发计划项目（2022YFC3004300）；国家自然科学基金资助
项目（52220105011）